P0011 SCION
P0011 SCION - Camshaft Position 'A' Timing Over-Advanced or System Performance Bank 1
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Possible causes
- Dirty Oil
- Variable Valve Timing (VVT) circuit is open or shorted
- Oil Control Valve (OCV) circuit is open or shorted
- Faulty variable valve timing (VVT)
- Faulty oil control valve (OCV)
- Damaged Engine Control Module (ECM)
- Variable Valve Timing (VVT) circuit is open or shorted
- Oil Control Valve (OCV) circuit is open or shorted
- Faulty variable valve timing (VVT)
- Faulty oil control valve (OCV)
- Damaged Engine Control Module (ECM)
Tech notes
There is a factory service bulletin for following Scion models.
2005-2006 Scion xA
2006-2006 Scion xB
Scion Service Bulletin OBDII Code P0011
2005-2006 Scion xA
2006-2006 Scion xB
Scion Service Bulletin OBDII Code P0011
When is the code detected?
After the ECM sends the target duty cycle signal to the OCV, the ECM monitors the OCV current to establish an actual duty cycle. The ECM determines the existence of a malfunction and sets the DTC when the actual duty cycle ratio varies from the target duty cycle ratio.
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of power
- Engine rough idle
- Lack/Loss of power
- Engine rough idle
P0011 SCION Description
The Engine Control Module (ECM) controls the Oil Control Valve (OCV) to regulate the intake camshaft angle. As a result of the angle change, the engine timing is advance or retard. Optimizing engine timing will help the engine improve torque and fuel economy, and the exhaust emissions decrease under overall driving conditions. The Variable Valve Timing (VVT) system includes the Oil Control Valve (OCV) and VVT controller. The ECM detects the actual intake valve timing using signals from the camshaft and crankshaft position sensors, and performs feedback control.
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